src/statsweekdaycongestion.cpp

   1 #include <QDebug>
   2
   3 #include "statsweekdaycongestion.h"
   4
   5 StatsWeekdayCongestion::StatsWeekdayCongestion(JourneyModel * journeys) :
   6     journeys(journeys)
   7 {
   8     title = "Congestion by day (cycles per hour)";
   9     units = "";
  10     labels = QStringList{"M", "T", "W", "Th", "F", "S", "Su"};
  11 }
  12
  13 void StatsWeekdayCongestion::update() {
  14     double passed[7];
  15     unsigned int count[7];
  16     int pos;
  17
  18     qDebug() << "Calculating values";
  19     values.clear();
  20
  21     for (pos = 0; pos < 7; pos++) {
  22         passed[pos] = 0u;
  23         count[pos] = 0u;
  24     }
  25
  26     foreach (Journey const &journey, journeys->getData()) {
  27         QDate date = journey.getStartDate();
  28         int dayofweek = date.dayOfWeek() - 1;
  29         double duration = journey.getDuration() / (60.0 * 60.0);
  30         if (dayofweek >= 0) {
  31             passed[dayofweek] += (journey.getOvertook() + journey.getOvertakenBy()) / duration;
  32             count[dayofweek]++;
  33         }
  34     }
  35
  36     maxval = 0.0;
  37     for (pos = 0; pos < 7; pos++) {
  38         float result = 0.0f;
  39         if (count[pos] > 0) {
  40             result = ((double)passed[pos] / (double)count[pos]);
  41         }
  42         if (result > maxval) {
  43             maxval = result;
  44         }
  45         values << result;
  46     }
  47
  48     step = maxval > 5.0 ? qRound(maxval / 5.0) : (maxval / 5.0);
  49
  50     qDebug() << "Calculated values";
  51 }